What is Fixed IP Address?

IP address is an address within the internet.
Fixed (static) IP address is an IP address that is exclusively assigned to you. By using the Fixed IP address, you can set the same IP address on your router etc. for every internet connection.

In usual internet connection, a different IP address (dynamic IP address) is assigned by the internet service provider every time a connection to the Internet is established. Whereas with Fixed IP Address Service, the same IP address (Fixed IP address) will be assigned for every internet connection. A fixed IPv4 address will be provided with this Service.

The followings are possible when using a fixed IP address:

Enable secure remote access to your home or office network.

Actualize a low-cost VPN (Virtual Private Network.)

Useful for shops and home security. You can remotely access to your webcam with your private line.

Able to use online services such as gaming and day trading that requires fixed IP.

Enable more secure working environment with groupware such as AsaOne by applying access limitation.

As of July 1, 2017, we have closed new application of Fixed IP Address Service and Pre-Allocation of Fixed IP Address Service for B FLET’S Courses in the NTT West area. New application of Fixed IP Address Service and Pre-Allocation of Fixed IP Address Service for B FLET’S Courses in the NTT East area are continued to be accepted.

Pre-allocation of Fixed IP Address Service

With Fixed IP Address Option, the IP address that is automatically assigned to the telecommunication device in initial internet connection is used as the fixed IP address. A fixed IPv4 address will be allocated with this Service.
In Pre-allocation of Fixed IP Address Service, we will inform customers a pre-allocated fixed IP address prior to the initial internet connection. (Information will be sent via post or FAX.)
This Pre-allocation Service enables customers to configure devices before the actual connection is established.

Compatible Courses [Pre-allocation of Fixed IP Address]

This Service is available for customers using the following Internet Connection Courses.

Fiber-Optics

Asahi Net FTTH with FLET'S (Home/Mansion) Course

FLET'S Hikari Next (Family/Mansion) Course

FLET'S Hikari Premium (Family/Mansion) Course

FLET'S Hikari Light (Family) Course

FLET'S Hikari Light Plus (Family) Course※1

B FLET'S (Family/Mansion/Business/Basic) Course

FLET'S ADSL Course

FLET'S ISDN Course

Available only for fiber-optic line serviced by NTT East

As of July 1, 2017, we have closed new application of Fixed IP Address Service and Pre-Allocation of Fixed IP Address Service for B FLET’S Courses in the NTT West area. New application of Fixed IP Address Service and Pre-Allocation of Fixed IP Address Service for B FLET’S Courses in the NTT East area are continued to be accepted.

Charges [Pre-allocation of Fixed IP Address]

Pre-allocation of Fixed IP Address Service Charge (per IP Address)

Initial Allocation Charge
※1

2000 yen

Charge shown above excludes tax.

Initial allocation charge shown above will be billed from Asahi Net. Other charges and fees, such as those for Internet Connection Courses and Fixed IP Address Option Service, Business Member service fee (applies to Business Members only) will incur.

Initial allocation charge will be applied to the month in which request for the service is made. Please note that initial allocation charge will incur when IP address is pre-allocated, even in cases where internet connection fails to be established due to condition of FLET’S line or any other reasons.

Notes

This optional service can only be used as an additional to internet connection services. You cannot apply for this optional service by itself.

Under some circumstances, Asahi Net may change the once allocated address. In such cases, we will notify at least two weeks in advance.

The allocated IP address is registered in the Asahi Net DNS server by the automatically generated host name under "asahi-net.or.jp" domain. Therefore DNS cannot be queried.

Asahi Net may stop connection of subjected IP address service without prior notice when any malicious acts such as sending spams, attacking or hijacking other devices, or using for springboard attacks to other devices, are confirmed on the assigned IP address.

Filter setting is not supported in this service on IP level. Please install filtering on your device.

Asahi Net does not support server setups. Asahi Net shall not be held responsible for any troubles incurred form server settings.

Pre-allocation of Fixed IP Address

Fixed IP address is allocated according to the network grouped by prefectures, which corresponds with NTT regional IP network. NTT regional IP network refers to NTT East/West’s network structured by prefectural area. The prefecture indicated in NTT regional IP network may differ from that of the actual residential address in some areas.